Writing-pad



G. R. CLARK WRITING PAD.

APPLICATION FILED SEPT. 10, 1918.

1,361,366, Patented Dec. 7, 1920.

3 SHEETS-SHEET I- INVENTOR WITNESSES A TTOR/VEYS G. R. CLARK.

WRITING PAD.

APPLICATION man SEPT. 10, 1913.

Patented Dec. 7, 1920.

3 SHEETS-SHEET 2- WITNESSES mvwk- G. R. CLARK.

WRITING PAD.

APPLICATION FILED SEPT. 10, I9I8.

1,361,366. Patented Dec. 7, 1920.

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WITNESSES W Geazya fZC/ari.

ATTORNEYS UNHTED STATES PATENT OFFICE.

GEORGE R. CLARK, OF WASHINGTON, DISTRICT OF COLUMBIA.

WRITING-PAD.

Application filed September 10, 1918 To all to ham it may concern Be itknown that I, Gnonon It. CLARK, a citizen of the United States, and aresident of Washington, in the District of Columbia, have inventedcertain new and useful Improvements in lVriting-Pads, of which thefollowing is a specification.

My invention relates to improvements in writing pads, and it consists inthe constructions, combinations, and arrangements herein described andclaimed.

An object of my invention is to provide a writing pad which includes asone of the most important features, an endless sheet of paper arrangedto be advanced step by step, and capable ofbeing reversed so that bothsides of the paper may be filled-with writing before it is discarded.

Another object of the invention to provide a writing pad having anendless sheet' of paper arranged to be advanced thewidth of a writingline by the actuation of a finger piece, the arrangement being such thatwhen one side of the paper is filled, the other side may also be writtenon by simply reversing the pad, the finger piece being actuated as theendless paper sheet,

Fig. 4 is a horizontal section showing the arrangement of the mechanismon the inside, Fig. 5, is a longitudinal section similar to n 3, thepaper sheet being omitted, v

Fig. 6 is a cross. section on the "line 6-6 of Fig. 2, p I

Fig. 7 is a detail horizontal section, illustrating more clearly theoperation of the.

pawl and ratchet mechanism at one endby means of the pitman and bellcrank, V

Fig. 8 is a detail section illustratingthe parts-in Fig. 7 more clearly,

Fig. 9 is a detail view of the cam and rack- "bar devices which operatein conjunction with the pawl and ratchet at each end,

Fig. 10 is a detail cross section illustrating the arrangement ofthepawl and ratchet de-' vices at one end of one of the feed rolls,

Specification of Letters Patent.

device.

Patented Dee '7, 1920. Serial No. 253,427.

Fig. 11 is a diagrammatic view illustrating the manner of winding thepaper,

F1 12 is a detail perspective view of the variable stop 43, and;

vF 1g. 13 is a detail perspective view of the ratchet disk and pawl. Inits general aspect, the improved writmg pad consists of a frame 1. Theframe comprises the side memberswhich have in-' wardly bent flanges 2 atthe extremities; These flanges extend to a place slightly beyond theupper and lower belt rolls 3 and 4, where they merge with plates 5 and6.

These plates extend entirely .across beneath the paper 7, thusconnecting the side 7 members 1 of the frame and forminga support forthe paper when'the pad is used" in writing. Endless belts Sand .9 areapplied to the upper and lower pairs of belt rolls 3 and 4,respectively.- The outer strands of these belts runover the plates 5and'.6 as can .be clearly observed in Figs. 3 and. .5.

In applying. the paper, which is supplied in a long sheet or inanyevent, a. sheet long enough to serve the intended purpose in-thewrlting pad, one end is fastened to the up per belt 8 by means of a hook10 .or any I other suitable fastening device that may be devised forthe, purpose. This is shown in diagrammatic Fig. 11. r The paper is theninitially. wound on the upper belt 8 as shown in Fig. 3, by applying thekey 11 to the square protruding.

end 12 of the shaft of the upper belt roll 3 paper sheet is nearly allwound up, the free end isapplied to the feed roll 13 at the right,guided over the lower belt 9, over the idler 14 at the left, andfastenedto the belt 9 by a hook 15 or other suitablefastening In actualpractice, there is space enough between the paper body- 7 at the left'inF ig; 11 and the adjacent feed roll 16, to enable the introduction ofthe fingersin securing v the fastener 15 to the belt 9 in the manner thfingers.

'at the left in Figs. 3 and 11. W After the .'The paper after securedonlower belt 9, will in the subsequent opera-Q tion of the device, winditself aroundthe belt as partly indicated in Fig. 11, until the paperbody is finally transferred fromtthe' upper belt 8 to the lower one. Onthis occasion-the paper sheet should be completely filled with writingon one side. Then by simply turning the writing pad over end wise andchanging the attachement of the then free end of the paper, the reverseand clean side of the paper will be exposed so that it too can be filledwith writing. 7

In changing the attachment .of the free,

it will be readily understood that the writing exposed at w in Fig. 11,will be covered when the paper is turned around and fastened on theother side, and on operating the feed rolls in the same direction, thepaper is pulled off of the belt 9, just as it was pulled off of the belt8 by the feed roll 13 in the first instance. Before describing theoperation of ad-.

vancingthe paper step by step in writing, it should first be explainedthat presser' rolls 18 and19 bear against the feed rolls 13 and 16respectively in order to hold the paper in contact with theparticularfeed roll to which 'the paper happens to be applied.

Eachpresser roll is journaled to rotate freely' inbearings of yokes 20and. 21.

These yokes are concealed on the inside of the frame, on the-sidemembers ofwhich they are'supported by suitable bearings 22 as shown in'8. The bridge portions of the yokes are pressed together by springs 23as shown in Fig. 4. These springs exert tension on the presser rolls sothat the presser rolls keep in firm'contact with the re spective feedrolls; e

' In order to throw the pressure rolls out for the insertion of the endsof the paper sheet,

cams 24 on a transverse shaft 25 are disposed at the lateral extremitiesof the yokes in the space between the bridge portions.

Uponturning the knurled head 26 at'onc end of the shaft 25, through aquarter turn,

the camsare made to separate the yokes for the purposedescribed.

A finger piece 27 on a pitman 28, is exposed atone side of the :frame'asshown in Fig. 1; The finger piece is depressed upon the writingofeachline,so,that the paper is moved upwardly one space. Thus in writ-' Ifing, the writing pad is held in" the left hand while the wrist of theright hand is sup ported near the bottom of, the pad. One of thefingersof the left hand is used'to actuate the finger piece 27"to move thepaper 11p,l it therefore becoming unnecessary to move the right handdown as the lines are written.

The pitman 28 extends across the frame in the inside wherein itreciprocates in a bearing 29. A pin 30 near the inner extremity of thepitman, operates in the forked end of a bell crank 31. The other forkedend of the. bell crank receives the pendent pin 32 of a longitudinallyextending rack bar 33.

The rack bar 33 has short racks 34 at each end. Each rack 34 meshes witha pinion 35 which is integral with a disk 36. The disk itself is looseon the exposed end of the feed roll shaft. The disk 36 has a peripheralnotch 37 through which the pin 38 of a pawl 39 on the other side,extends. The pawl is pivoted on the disk 36 at 39 in Figs. 8 and 13.

The pawl 39 is normally held out of engagement with the ratchet 40secured on the adjacent end of the feed roll which is operated thereby,by means of a cam 41 which is stationarily supported by the arm 41. Aswill be observed in Fig. 9, the arrangement is such that the pin 38rides back over the stationary cam 41 on each return stroke of thefinger piece 27 so that the pawl 39. is again lifted out of engagementwith the ratchet disk 40. A spring 42 presses the pawl into engagementwith the ratchet,

when the pin. 38 rides over the end of the stationary cam 41 in making astroke.

In order to ad'ust the stroke of the racl bar 33 and consequently tovary the. space between the lines of writing, the inward thrust of thepitman 28 can be regulated in len th by means of the regulator 43,shown:'

in *ig. 7. The regulator consists ofa slidable piece with a plurality ofsteps." A

knurled head 44 on the outside enables the movement of the regulator sothat any one of the steps can be brought into alinement with the end ofthe pitman 28. V

It will readily be observed that the thrust of the pitman is limited tothe distance between the end of the pitman and the adj acent surface ofthe particular one of the ioo stepspso that the distance of movement ofthe pawl 39 is regulated accordingly. Thus the feed roll made to move agreater or less distance; a

A spring 45 shown in Fig.6, returns the.

pitman 28 and finger piece 27 to the normal position after eachdepression. Intermesln ing gears 46, 47 on one end of each of the beltrolls 3 and 4', positively drive the re-- i spective pairs of belt rollsin opposite directions as illustrated in Fig. 11. The stub. axles of thefeed rolls are j ournaled in bear 1 ings 48 at each open end of theframe as shown in Fig. 8.

In order to secure a rapid back and forth I motion of, the paper sheetshould'an occa- 'move the paper back a distance, the axle of the feedr011 13 is extended at one end and squared as shown in Fig. 4, so thatthe key 11 may be applied thereto as shown in Fig.

1, for the purpose described. Similarly the axle of the feed roll 16 isextended and squared, so that the key 11 may be applied to either axle.

It will readily be observed that the paper can be moved either forwardlyas when used in writing, or if it be desired .to-move the paper back oneor two spaces for the purpose of making a correction, this can be doneby turning either one of the feed rolls. These are free to revolve ineither direction. 7

Casings are formed on the upper edges of the side members of the frame,to cover the gears 46 and 47 at one side. These casings are duplicatedat the other side, and together these casings form legs upon which thedevice rests when set upon a table. The legs thus support the deviceclear of the table and the action of the paper is therefore notinterfered with. Since the operation of the device has been fullyexplained in con nection with the description of the parts, it isthought unnecessary to repeat it.

While the construction and arrangement of the writing pad is that of agenerally preferred form, obviously modifications and changes may bemade without departing from the spirit of the invention or the scope ofthe claims.

I claim:

1. A reversible writing pad, comprising a frame, paying-off paperholding means, to

which one end of a paper sheet is connected and then applied to aportion of the frame; receiving means to which the other end of thepaper is connected, and means for producing a step-by-step motion ofpredetermined extent of said paying-off means, to so wind the paper onthe receiving means with the writing concealed, to enable writing on theclear side by turning the writing pad enclwise and changing thepaperconnections.

2. A writing pad, comprising a frame including plates, a pair of endlessbelts having strands running over the plates, a feed roll for moving apaper sheet wound on one belt and attached to the other belt having thepaper sheet applied thereto, and means for actuating the feed roll byintermittent strokes to unwind the paper from the one belt onto theother.

8. A writing pad, comprising a frame including plates, a pair of endlessbelts having strands running over the plates, a feed roll, means foractuating the feed roll by intermittent strokes to unwind a paper sheetfrom one belt onto the other belt said sheet being suitably connected toeach belt, and means cooperaing with said feed roll actuated ,meansvarying the lengths of the strokes.

- 4. A writing pad, comprising a frame including plates, pairs of beltrolls journaled 'in the frame, a pair of endless. belts carried bycertain pairsof the rolls and having strands .runnlng' over the plates,fr1ct1on .means including a feed roll for unwinding .a paper sheet fromone belt, means for actuating the feed roll by intermittent strokes, andmutual driving means carried by the belt .rolls, for winding said papersheet on the second belt as it'is unwound from the first belt, saidsheet being suitably connected ateach endto each belt.

5. A writing pad, comprising a frame including plates, pairs of beltrolls journaled in the frame, a pair of endless belts car- 'ried bycertain pairs of therolls'and having strands running over the plates,friction means including a feed roll for unwinding a paper'sheet fromone belt to which one end is attached, means for actuating the feed rollby intermittent strokes, mutual driving means carried by the belt rolls,for winding the paper on the second belt to which the other end isattached as it is unwound from the first belt, and a feed roll becomingoperative to advance the paper, when the filled sheet is wound on thesecond belt and the attachment of the then free end is changed to exposethe clean reverse side of the paper.

6. A writing pad, comprising a frame of side members with transverseupper and lower connecting plates enabling the writ ing on both sidesofa paper sheet by reversing the. pad and changing the accessible paperconnection, pairs of rollers mounted transversely of the frame adjacentto the ends of said plates, a pair of endless belts applied to pairs ofthe rollers and having strands running on the outsides of the plates,gear connections between the rollers, feed rolls at the ends of the pad,attaching means for securing a paper sheet to both belts at therespective ends, the sheet being initially wound on one belt releasablepressing means for keeping the paper in contact with the feed rolls, andmeans for actuating the feed rolls intermittently to secure a step bystep engaging the pin and holding the pawl out of contact with theratchet, a rack bar arranged to rotate the pinion whereupon the pinrides ofi'the cam into engagement with eluding a pitman for operatingthe rack bar.

8. In a writing pad, a feed roll having a ratchet fixed on one end, afreely revoluble I pinion and disk, the disk having a peripheral notch;a pawl for engaging the ratchet, pivoted on the disk and having a pinextending through the notch, resilient means for pressing the pawlagainst the ratchet, means including a stationary cam normally engagingthe pin and holding the pawl out of contact with the ratchet, a rack bararranged to rotate the pinion whereupon the pin rides off the cam intoengagement with the ratchet, finger actuated means including a pitmanfor operating the rack bar, and means including a stepped regulatormovable across the end of the pitman to limit the thrusts thereof andobtain various distances of movement of the pawl.

9. In awriting pad, the combination of a pair of feed rolls, presserrolls cooperating with the feed rolls, yokes supporting the presserrolls and including adjacently lo- 'cated bridge portions, resilientmeans engaging the bridge portions for urging them together and holdingthe presser rolls in contact with the feed rolls, a shaft between thebridge portions, and means including cams carried by the shaft, adaptedto separate the bridge portions to release the presser rolls from thefeed rolls upon partly turning the shaft.

10. A writing pad, comprising a frame, holding means for a paper sheetrunning over the frame including endless belts and feed rolls, actuatinggears included in said holding means, gear cases on one side of theyframe covering said gears, and false gear cases on the other s1de of thefIiLIIlB'lIl duplication of said gear cases, forming legs for thesupport ofthe writing pad when placed on a table.

GEORGE R. CLARK.

